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First, I suppose I should define what a "theory of everything" actually is. I'd describe it as a mathematical model that predicts the behavior of any object under any given set of conditions. It sh...
Yes. You want a hornet-like platypus in the rainforest. Hear me out. Water conducts electricity substantially better than air, salt water in particular. Therefore, electroreception - the ability ...
Consider: there are conditions that are passed on by X-linked recessive inheritance. The most famous is haemophilia. Here's how it works: mutation BadNews is recessive, and carried on the X chromos...
I actually figured this out shortly after beginning the story, and I'm going to therefore post a self-answer, because it might be useful to others. Obviously, I'm still open to more ideas if this o...
The redness of Mars' surface comes from the large quantities of iron in its crust. Other terrestrial planets in the Solar System also contain iron, but not at their surfaces. Mars in particular has...
I'm going to go add a fourth possibility to your crocodilian, amphibian, mammalian choice list: dinosaurid. First, the hair could be explained as pycnofibers, " hair-like filaments ... similar to,...
Optical depth Let's start by looking at the idea of optical depth. Optical depth is a quantity that describes how light is attenuated as it travels through a medium. There are two commonly used eq...
An acre is, with rounding, a square with a side length of just under 210 feet. With 53 worms per acre, each worm has about 820 ft/sq - Or, a square with a side length of just under 29 feet. Dispe...
The Moon can appear to be different colors, as seen from Earth: A red, orange, or yellow moon can appear when the moon is near the horizon, and light has to travel through more of the atmosphere,...
Geothermal Heat Pump - Heating & Cooling A Geothermal Heat Pump can work well on Earth for both heating and cooling. If you have a moon/planet where the temperature below ground is fairly cons...
For waves that have small heights relative to the water depth ($H\ll a$), we can use Airy wave theory. This works well for waves that are far out at sea, and can include tsunamis, in deep water. I ...
It depends on what you mean by "reset". If you can somehow reset it perfectly so that all elementary particles are exactly the same as they were at some point in the past, and all input (cosmic rad...
Reverse the War of the Currents. In the late 19th century, Thomas Edison supported the use of direct current, and his company, Edison General Electric, attempted to use it on a large scale. A majo...
Massive objects beyond the frost line are likely giant planets. Let's talk about the frost line, which you helpfully specified (3.94 AU). For anyone not familiar with the term, the frost line is t...
According to Slashdot (Apparently they are still around), it takes 3 Gigajoules to completely vaporize a body. According to online conversion calculators, it takes .72 tons of tnt to get 3 gigajou...
The problem is that a simple head won't fly - it needs some wings. And that is exactly where those "entrails" come into play. The "entrails" are really a form of wings that allows your creature t...
Your question related to staying down in microgravity. Without a gravity field generator or something the answer is to increase the mass. While this is not ideal from an inertia point of view it ...
Set up walking paths equipped with rails. It could look something like a walker, possibly with straps to hold you down, and tied into a rail system. Each time you take a step the walker and strap...
Time flies are attracted to temporal paradoxes. The name implies a small fly, but in reality they are brutal, quite big and carnivorous. Ever wondered why there are no time-travellers around? Gue...
So you want the siege to go on for a while. So here are some things that are in the defenders favor: The attackers can't try too hard because they don't want to blow up the station, and if they...
Magma https://www.youtube.com/watch?v=hmMlspNoZMs Basically find an underwater volcano and tap it, releasing pressure so it doesn't explode, and direct the magma into block forms. Once it has c...
A good BBQ has a few key attributes (aside from starting with quality raw meat, which has already been arranged): High and/or long-lasting heating. High heat for searing steaks and for cooking up...
Money - a very macabre version of streaming You could for example make a live television show that sends every duel happening across the world. Think about it like Twitch where you can watch peopl...
We give the minds some hobbies to do We have lots of people who have literally nothing else to do than think. That will probably be boring for quite a few of them. Why don't we put them to us-... ...
There is a major problem with this species: a plant needs nutrients to grow. Not just sunshine and CO2, but water, minerals, proteins etc. Normally, those would be acquired from the soil and/or fro...
